Question

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Answer 1

Answer:

7.5 cm

Explanation:

Apparent depth formula simply goes like

$d_{apparent} = \frac{d_{real}}{R.I.}$

So,  $d_{apparent} = \frac{10}{\frac{4}{3} }$

Apparent depth = 7.5 cm

Answer 2

Explanation:

see the attached image above...

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